From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with SMTP id 797076B01F1 for ; Thu, 1 Apr 2010 20:45:21 -0400 (EDT) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [PATCH 08 of 41] add pmd paravirt ops Message-Id: In-Reply-To: References: Date: Fri, 02 Apr 2010 02:41:35 +0200 From: Andrea Arcangeli Sender: owner-linux-mm@kvack.org To: linux-mm@kvack.org, Andrew Morton Cc: Marcelo Tosatti , Adam Litke , Avi Kivity , Izik Eidus , Hugh Dickins , Nick Piggin , Rik van Riel , Mel Gorman , Dave Hansen , Benjamin Herrenschmidt , Ingo Molnar , Mike Travis , KAMEZAWA Hiroyuki , Christoph Lameter , Chris Wright , bpicco@redhat.com, KOSAKI Motohiro , Balbir Singh , Arnd Bergmann , "Michael S. Tsirkin" , Peter Zijlstra , Johannes Weiner , Daisuke Nishimura List-ID: From: Andrea Arcangeli Paravirt ops pmd_update/pmd_update_defer/pmd_set_at. Not all might be necessary (vmware needs pmd_update, Xen needs set_pmd_at, nobody needs pmd_update_defer), but this is to keep full simmetry with pte paravirt ops, which looks cleaner and simpler from a common code POV. Signed-off-by: Andrea Arcangeli Acked-by: Rik van Riel Acked-by: Mel Gorman --- diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/asm/paravirt.h @@ -440,6 +440,11 @@ static inline void pte_update(struct mm_ { PVOP_VCALL3(pv_mmu_ops.pte_update, mm, addr, ptep); } +static inline void pmd_update(struct mm_struct *mm, unsigned long addr, + pmd_t *pmdp) +{ + PVOP_VCALL3(pv_mmu_ops.pmd_update, mm, addr, pmdp); +} static inline void pte_update_defer(struct mm_struct *mm, unsigned long addr, pte_t *ptep) @@ -447,6 +452,12 @@ static inline void pte_update_defer(stru PVOP_VCALL3(pv_mmu_ops.pte_update_defer, mm, addr, ptep); } +static inline void pmd_update_defer(struct mm_struct *mm, unsigned long addr, + pmd_t *pmdp) +{ + PVOP_VCALL3(pv_mmu_ops.pmd_update_defer, mm, addr, pmdp); +} + static inline pte_t __pte(pteval_t val) { pteval_t ret; @@ -548,6 +559,18 @@ static inline void set_pte_at(struct mm_ PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte); } +#ifdef CONFIG_TRANSPARENT_HUGEPAGE +static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, + pmd_t *pmdp, pmd_t pmd) +{ + if (sizeof(pmdval_t) > sizeof(long)) + /* 5 arg words */ + pv_mmu_ops.set_pmd_at(mm, addr, pmdp, pmd); + else + PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp, pmd.pmd); +} +#endif + static inline void set_pmd(pmd_t *pmdp, pmd_t pmd) { pmdval_t val = native_pmd_val(pmd); diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h --- a/arch/x86/include/asm/paravirt_types.h +++ b/arch/x86/include/asm/paravirt_types.h @@ -266,10 +266,16 @@ struct pv_mmu_ops { void (*set_pte_at)(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pteval); void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval); + void (*set_pmd_at)(struct mm_struct *mm, unsigned long addr, + pmd_t *pmdp, pmd_t pmdval); void (*pte_update)(struct mm_struct *mm, unsigned long addr, pte_t *ptep); void (*pte_update_defer)(struct mm_struct *mm, unsigned long addr, pte_t *ptep); + void (*pmd_update)(struct mm_struct *mm, unsigned long addr, + pmd_t *pmdp); + void (*pmd_update_defer)(struct mm_struct *mm, + unsigned long addr, pmd_t *pmdp); pte_t (*ptep_modify_prot_start)(struct mm_struct *mm, unsigned long addr, pte_t *ptep); diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -422,8 +422,11 @@ struct pv_mmu_ops pv_mmu_ops = { .set_pte = native_set_pte, .set_pte_at = native_set_pte_at, .set_pmd = native_set_pmd, + .set_pmd_at = native_set_pmd_at, .pte_update = paravirt_nop, .pte_update_defer = paravirt_nop, + .pmd_update = paravirt_nop, + .pmd_update_defer = paravirt_nop, .ptep_modify_prot_start = __ptep_modify_prot_start, .ptep_modify_prot_commit = __ptep_modify_prot_commit, -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org